Unreal Engine Issues
Unreal Engine Issues
Event tick not firing when in an actor component that is added to an actor
UE - Gameplay - Blueprint - Aug 22, 2017When using actor components, if you delete a node, such as event tick and then add it to an actor, even if you modify the component again, such as adding the event tick event back, the component wil ...
"Convert to Blueprint" removes ability to edit component properties
UE - Gameplay - Blueprint - Dec 4, 2018As noted by the user in the linked UDN question, this seems to be a problem with the PointLightComponent property on APointLight not having the VisibleAnywhere property descriptor. Also as noted, th ...
Generate Project Files process fails if SwarmAgent.exe is not present
UE - Foundation - Cpp Tools - Mar 5, 2019This issue appears to be the result of the fix for [Link Removed] which removed RPCUtility from the Engine. A licensee noted that they were now seeing an issue when attempting to generate project fi ...
Reimporting an FBX causes invalid collision on Spline Mesh Components (Chaos)
UE - Editor - Content Pipeline - Import and Export - Nov 11, 2021Reported in UDN: [Link Removed] Reimporting a static mesh asset from an FBX file causes collision to disappear on spline meshes referencing the static mesh asset. In investigating this in 4.27, I ...
Issue where some colors are missing in some materials created by importing MaterialX files
UE - Editor - Content Pipeline - Import and Export - Apr 1, 2024From user: Comparing UE, Arnold, Vray and MaterialXView that have MaterialX files imported, some materials of UE clearly look different from other renderers. Looking into this issue, we found that ...
Many downloaded cloud items cause a performance issue when booting Twinmotion
TM - Interoperability - Sep 29, 2025See slack thread: [Link Removed] Resume : In the context of the object substitution for Revit, when TM starts, it exports a csv listing the available objects and their corresponding thumbnail. This ...
[CrashReport] UE4Editor-CoreUObject!UObject::IsSelected() [obj.cpp:1149]
UE - Graphics Features - Jan 12, 2019Generated from CrashReporter ...
Packaging with Code Editor plugin crashes and then fails to build
UE - Foundation - Cpp Tools - Plugin System - Jun 18, 2015Packaging with the [experimental] Code Editor plugin enabled causes a crash during the packaging process in 4.8 source. The crash does not kill the editor, project can recover by choosing for Window ...
GAS: Removing an AttributeSet followed by removing an active GameplayEffect results in client crash
UE - Gameplay - Gameplay Ability System - Aug 23, 2023Gameplay Ability System Standalone: Removing an attribute set and then removing an active gameplay effect that has a modifier for an attribute from that set results in a crash. Currently, one must ...
Component names do not increment correctly when duplicating a component whose name ends with a number
UE - Gameplay - Components - Apr 10, 2019REGRESSION: Yes, this does not occur in 4.21. This also occurred before CL 58120777, which fixed [Link Removed] Duplicating or Copy/Pasting a component whose name ends in a number does not increme ...